VehicleVerdict

2020 GMC Sierra 1500 other problems

The 2020 GMC Sierra 1500 has 42 other complaints filed with NHTSA — 6% of the year's total, and roughly flat versus the prior model year.

42

Other complaints

6%

Share of year

0

Crash-involved

0

Related recalls

Other complaints by year

What owners report

Rear window (the one that faces straight back towards bed of truck) is leaking… Haven’t taken it in to dealership for repair because I’ve exceeded mileage so truck is no longer under warranty… Not sure how long it’s been leaking but I’ve recently noticed that water stains (runs) on the…

Complaint filed with NHTSA · Other · September 4, 2020

Common questions

How many other complaints does the 2020 GMC Sierra 1500 have?

NHTSA has 42 complaints about the 2020 GMC Sierra 1500 other — 6% of all complaints filed for that model year.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.